25174715
Coolant Level Sensor
Mack

Coolant level sensor monitors the reservoir level and sends a signal to the engine management or dash warning system when coolant is low. This automation helps prevent overheating and coolant loss from leaks, enabling timely service before the engine temperature climbs or the vehicle enters a hard limit condition. The sensor is designed for quick response, robust sealing against vibration, and compatibility with standard connector families. In many applications, it integrates with the cooling system’s control module to alert the driver or trigger reduced-power or shutdown protocols if the level drops unexpectedly. A good sensor resists corrosion from coolant additives, withstands thermal cycling, and remains reliable across seasons. Maintenance involves inspecting the sensor for deposits, ensuring the wiring harness is secure, and replacing the gasket if required to prevent leaks. For fleet reliability, choose a sensor matched to the reservoir size and style. Source One Parts Center can supply dependable coolant level sensors.